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Model:CISCO3925/K9 Cisco 3925 Router 3900 Series ISR G2

Product detail:Cisco 3925 Router w/SPE100(3GE,4EHWIC,4DSP,2SM,256MBCF,1GBDRAM,IPB)

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CISCO3925/K9 Overview


Cisco 3925 Integrated Services Router(ISR)
Modular Services Performance Engine (SPE) 100, which can be upgraded for even higher performance as next-generation WAN environments evolve
3 integrated 10/100/1000 Ethernet ports with 2 ports capable of RJ-45 or SFP connectivity
2 service module slots
4 Enhanced High-Speed WAN Interface Card (EHWIC) slots
4 onboard digital signal processor (DSP) slots
1 Internal Services Module slot
Dual integrated power supplies
Embedded hardware-accelerated VPN encryption for secure collaboration
Integrated threat control using Cisco IOS Firewall, Cisco IOS Zone-Based Firewall, Cisco IOS IPS, and Cisco IOS Content Filtering
Unified Communications
High-density-packet voice DSP module, optimized for voice and video support
Standards-certified VoiceXML browser services
Cisco Unified Border Element capabilities
Cisco Unity Express voicemail support
Support for Cisco Communications Manager Express and Survivable Remote Site Telephony


Modularity Features and Benefits:

The Cisco 3900 Series provides significantly enhanced modular capabilities while maintaining investment protection for customers. Taking advantage of common interface cards across a network greatly reduces the complexity of managing inventory requirements, implementing large network rollouts, and maintaining configurations across a variety of branch-office sizes.

Architectural Features


Cisco Services Performance Engine (SPE)

• The Cisco 3900 Series offers field-replaceable SPEs.
• These SPEs allow you to protect your initial investment in the Cisco 3900 platform for a longer time period and scale router performance as your network and branch-office needs grow.

Cisco Services Module


fig 4
fig 5
• A service-module slot replaces the network module and the extension module for voice and fax (EVM) slots and is offered on Cisco 3900 Integrated Services Routers.
• Each service-module slot offers high data-throughput capability:
• Up to 4-Gbps aggregate toward the router processor.
• Up to 2-Gbps aggregate to other module slots over the MGF.
• Service-module slots are highly flexible, with support for doublewide service modules, which are service modules that require two service-module slots. Doublewide service modules provide flexibility for higher-density modules.
• Service-module slots provide twice the power capabilities relative to the network-module slots, allowing flexibility for higher-scale and better-performance modules.
• An adapter module enables backward compatibility with existing network modules, enhanced network modules (NMEs), and EVMs.
• You can manage power to service-module slots by extensions similar to the Cisco EnergyWise framework, so your organization can reduce energy consumption in your network infrastructure. Full Cisco EnergyWise support will be available in future software releases.

Cisco Enhanced High Speed WAN Interface Card (EHWIC)

fig 6
• The EHWIC slot replaces the high-speed WAN interface card (HWIC) slot and can natively support HWICs, WAN interface cards (WICs), voice interface cards (VICs), and voice/WAN interface cards (VWICs).
• Three integrated EHWIC slots on the Cisco 3945E and Cisco 3925E or four integrated EHWIC slots on the Cisco 3945 and Cisco 3925 allow for flexible configurations.
• Each HWIC slot offers high-data-throughput capability:
• Up to 1.6-Gbps aggregate toward the router processor.
• Up to 2-Gbps aggregate to other module slots over the MGF.
• Flexibility to support doublewide modules is enabled by combining two EHWIC slots. Up to 2 doublewide HWIC (HWIC-D) modules are supported.

Cisco High-Density Packet Voice Digital Signal Processor (DSP) Module (PVDM3) Slots on Motherboard

fig 8
• PVDM3 slots natively support PVDM3 modules, providing support for richer density for rich-media voice and video.
• Each PVDM3 slot connects back to the system architecture through a 2-Gbps aggregate link through the MGF.
• Investment protection for PVDM2 modules is supported through an adapter module.
• You can manage power to the PVDM slots by extensions similar to the Cisco EnergyWise framework, so your organization can reduce energy consumption in your network infrastructure. Full Cisco EnergyWise support will be available in future software releases.

Cisco 3925 Integrated Services Routers (ISR) CISCO3925/K9 belongs to the Cisco ISR G2 routers Cisco 3900 Series what offers embedded hardware encryption acceleration, voice- and video-capable DSP slots, optional firewall, intrusion prevention, call processing, voicemail, and application services, in addition of supporting the industry's widest range of wired and wireless connectivity options such as T1/E1, T3/E3, xDSL, copper, and fiber Gigabit Ethernet. New or refurbished CISCO3925/K9 would either have high-performance for flexible network deployments from small business offices to large enterprise offices.

By default, original new CISCO3925/K9 offers C3900-SPE100/K9 which can be replaced to protect your initial investment in the Cisco 3900 platform for a longer time period and scale router performance as your network and branch-office needs grow. Furthermore, 3 onboard GE, 4 EHWIC slots, 4 DSP slots, 1 ISM slot, 2 SM slots, 256MB CF default, 1 GB DRAM default, IP Base would also be read in CISCO3925/K9 ordering information.

Compare to Cisco 3900 Series Routers

Related Product List Price Price Description
CISCO3925/K9 $9,500 $3,800 Cisco 3925 Router w/SPE100(3GE,4EHWIC,4DSP,2SM,256MBCF,1GBDRAM,IPB)
CISCO3945/K9 $13,000 $4,680 Cisco 3945 Router w/SPE150(3GE,4EHWIC,4DSP,4SM,256MBCF,1GBDRAM,IPB)
CISCO3925-V/K9 $10,795 $3,995 Cisco 3925 Voice Bundle, PVDM3-64, UC License PAK
CISCO3945-V/K9 $14,295 $5,147 Cisco 3945 Voice Bundle, PVDM3-64, UC License PAK
CISCO3925E/K9 $16,500 $6,930 Cisco 3925E router w/SPE200,4GE,3EHWIC,3DSP,2SM,256MBCF,1GBDRAM,IPB
CISCO3945E/K9 $19,500 $9,360 Cisco 3945 router w/SPE250, 4GE, 3EHWIC,3DSP, 4SM, 256MBCF, 1GB DRAM, IPB

CISCO3925/K9 Specifications

Manufacturer Cisco Systems, Inc
Manufacturer Part Number CISCO3925/K9
Product Type Router
Form Factor Desktop - modular - 3U
Connectivity Technology Wired
Data Link Protocol Ethernet, Fast Ethernet, Gigabit Ethernet
Capacity Cisco Unified Communications Manager Express sessions : 250
Cisco Unified SRST sessions : 730
Network / Transport Protocol IPSec, PPPoE, L2TPv3
Routing Protocol OSPF, IS-IS, BGP, EIGRP, DVMRP, PIM-SM, IGMPv3, GRE, PIM-SSM, static IPv4 routing, static IPv6 routing, policy-based routing (PBR)
Remote Management Protocol SNMP, RMON
Encryption Algorithm SSL
Features Firewall protection, VPN support, MPLS support, Syslog support, content filtering, IPv6 support, Class-Based Weighted Fair Queuing (CBWFQ), Weighted Random Early Detection (WRED), Quality of Service (QoS), Dynamic Multipoint VPN (DMVPN)
Compliant Standards IEEE 802.3, IEEE 802.1Q, IEEE 802.1ah, IEEE 802.1ag
DRAM Memory 1 GB (installed) / 2 GB (max)
Flash Memory 256 MB (installed) / 8 GB (max)
LED Status Lights Indicators Link activity, power
Connectivity Slots
Router Interfaces 3 x 10Base-T/100Base-TX/1000Base-T - RJ-45
Management : 1 x console - RJ-45
Management : 1 x console - mini-USB Type B
Serial : 1 x auxiliary - RJ-45
Hi-Speed USB : 2 x 4 PIN USB Type A
2 x SFP (mini-GBIC)
Expansion Slots Total (Free) 4 ( 4 ) x EHWIC
4 ( 4 ) x PVDM
2 ( 1 ) x CompactFlash Card
1 ( 1 ) x Expansion Slot
2 ( 2 ) x service module (SM)
Power Supply
Power Device Power supply - internal
Voltage Required AC 120/230 V ( 47/63 Hz )
Dimensions / Weight / Miscellaneous
Width 47.6 cm
Depth 43.8 cm
Height 13.3 cm
Weight 17.7 kg
Compliant Standards CISPR 22 Class A, CISPR 24, EN55024, EN55022 Class A, EN50082-1, AS/NZS 60950-1, AS/NZ 3548 Class A, CAN/CSA-E60065-00, ICES-003 Class A, CS-03, FCC CFR47 Part 15, EN300-386, UL 60950-1, IEC 60950-1, EN 60950-1, CSA C22.2 No. 60065, BSMI CNS 13438
System Software
IOS Software Included Cisco IOS IP Base


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Return Material Authorization (RMA) Process

Standard Hardware Warranty Policy :
Original new sealed Cisco product: 1 Year
Used Cisco product: 3 Month
The Support Contacts :
If your Cisco products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.
The RMA Confirmation :
Your sales representative will send you RMA form. (Download RMA form)
(see attachment. PO No.; Product Serial No.; Description of Failure or Problem)
You Fill it and send back to sales representative.
RMA Return Shipment :
A : After ot RMA form, sales representative will tell you returned instruction by email, including shipping address and special shipping invoice.
B : Returned products have to be packed properly to avoid damage during delivery.
C : All accessories and user documentations should be returned.
D : Once shipped, pls tell sales representative tracking No. immediately.
Delivery Charges :
The Customer is responsible for paying shipment charges when returning to us; We will pay for shipment of the repaired items back to the customer
RMA Turnaround Time :
The defective products will be sent to Cisco Distributor for repair.
Within four weeks after receipt of returned item, the repaired or replacement item will be ready for return shipment.
Then item will be shipped to customer by Express such as DHL or Fedex.

Customer Reviews

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    (4 customer reviews)

    Rate and review this CISCO3925/K9

Cisco 3925 K9

By October 25, 2013

Very good and reliable router, the support for most users is probably a must. We have a couple of these routers which we use for people to VPN in and also use it as a firewall as our Internet connection comes in on it.


By September 27, 2013

The Cisco 3925, a hot item of Cisco 3900 series, is very right for today’s branch offices. Thanks for the free technical help before purchasing.

3925 SPE change

By August 2, 2013

is it possible to change the SPE of a 3925 (SPE100) to an E series SPE 3925E (SPE200)? I want to keep the chassis but want to turn the router into a 3925E.


By September 8, 2010

Thank you, I receive the router today, only 2 days..very fast shipping.

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CISCO3925/K9 Notes

Router-Switch.com has been dedicated to supplying large collections of cisco routers for your home or office networking. Shopping CISCO3925/K9 router with high quality, quick shipping and free CCIE Support from our Cisco experts!

Find step-by-step tech guides to configure Cisco 3925 Router w/SPE100(3GE,4EHWIC,4DSP,2SM,256MBCF,1GBDRAM,IPB) for your needs.

Get a quote for CISCO3925/K9 by email: [email protected], and start enjoying the professional sales service for solving the switch troubleshooting.

    Product FAQ

    Q: My customer has a standard configuration for CISCO3925/k9 routers but has CISCO3945/K9 routers available from a cancelled project. Can they just copy the 3925 configuration file onto the 3945 router and it provide the functionality of the 3925?

    A: If the two routers have same IOS (including license) and identical hardware, answer is likely yes. Or, maybe only some minor editing will be required (for example if interface numbering differs).

    Q: We have a 3925e router running IOS 15.1(4)M6. One of its current WAN connections is 1000BaseT. We want to migrate it to 1000BaseF. We have the GBIC (GLC-SX-MM) and I know I can just drop it in there.

    A: I think you are looking for the "media-type rj45" command in interface-mode. Later you change to "media-type sfp" when you are ready to switch links.

    Q. On the Cisco ISR G2 routers with the SEC-K9 license, what tunnel count and performance throughput are available?

    A. The SEC-K9 permanent licenses apply to the Cisco 1900, 2900, and 3900 ISR G2 platforms; these licenses limit all encrypted tunnel counts to 225 tunnels maximum for IP Security (IPsec), Secure Sockets Layer VPN (SSL VPN), a secure time-division multiplexing (TDM) gateway, and secure Cisco Unified Border Element (CUBE) and 1000 tunnels for Transport Layer Security (TLS) sessions. The SEC-K9 license limits encrypted throughput to less than or equal to 85-Mbps unidirectional traffic in or out of the ISR G2 router, with a bidirectional total of 170 Mbps. This requirement applies for the Cisco 1900, 2900, and 3900 ISR G2 platforms.

    Q. What is the exact HSEC-k9 license?

    A. The HSEC-K9 license removes the curtailment enforced by the U.S. government export restrictions on the encrypted tunnel count and encrypted throughput. HSEC-K9 is available only on the Cisco 2921, Cisco 2951, Cisco 3925, Cisco 3945, Cisco 3925E, and Cisco 3945E. With the HSEC-K9 license, the ISRG2 router can go over the curtailment limit of 225 tunnels maximum for IP Security (IPsec) and encrypted throughput of 85-Mbps unidirectional traffic in or out of the ISR G2 router, with a bidirectional total of 170 Mbps. The Cisco 1941, 2901, and 2911 already have maximum encryption capacities within export limits.

    Q. What countries are classified license-free zones?

    A. Countries belonging to the EU license-free zone include Australia, Austria, Belgium, Bulgaria, Canada, Cypress, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Japan, Latvia, Lithuania, Luxembourg, Malta, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom, and the United States.

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